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Finding the Fourth Proportional to 351.84, 525.91 and 248.43

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Solution

The fourth proportional to 351.84, 525.91 and 248.43 is: 371.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    351.84 : 525.91 = 248.43 : x
  2. Step 2: Convert to fraction form
    351.84/525.91 = 248.43/x
  3. Step 3: Cross multiply
    351.84x = 525.91 × 248.43
  4. Step 4: Simplify right side
    351.84x = 130,651.82
  5. Step 5: Solve for x
    x = 130,651.82/351.84
  6. Step 6: Final answer
    x = 371.34

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.